Origin
Southern and central Africa
Madagascar, Southern and central Africa
Color
Black, Brownish, Brown
White, Yellow, Blue, Green, gray
Streak
Brown
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.5-4.82.55-2.63
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
None, parting may develop along {111}
{001} Perfect, {010} Good
Mohs Hardness
5.56-6.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Luster
-
Vitreous
Pleochroism
none.
-
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
2.08-2.161.514-1.539
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Triclinic Pinacoidal H-M Symbol (1) Space Group: P1
Birefringence
-99990.008-0.010
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Emotional Balance